Simple Plots for Monitoring Field Reliability

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Agenda MTBF Limitations Repairable Systems Analysis <strong>for</strong> Age and Calendar Time Time Dependent Cause Plotting Case Studies Summary Dave Trindade, Swami Nathan, Sun Microsystems Track 1 Session 9 Slide Number: 4
MTBF Hides In<strong>for</strong>mation Example with 3 failures in 3000 hours... *** System 1 Dave Trindade, Swami Nathan, Sun Microsystems 1000 2000 System 2 * * * 1000 2000 *** System 3 1000 2000 Track 1 Session 9 3000 3000 3000 MTBFs are the same, implying equal reliability. Slide Number: 5
Page 1 and 2: ARS 2005 San Diego, California, USA
Page 3: Introduction Customers want to kno
Page 7 and 8: MTBF Assumptions: When is it OK ?
Page 9 and 10: MTBF-Inadequate Reliability Measure
Page 11 and 12: Time Dependent Reliability (TDR) T
Page 13 and 14: Cumulative Plots reveal trends Cumu
Page 15 and 16: MCF from Cumulative Plots # Fails 1
Page 17 and 18: Multicensoring Issues Because syst
Page 19 and 20: Left Censored Data System A System
Page 21 and 22: MCF calculation : Data Template Hi
Page 23 and 24: MCF, CI, Cumulative Plots Average #
Page 25 and 26: Glosup's Method One machine is rem
Page 27 and 28: Recurrence Rate A key characterist
Page 29 and 30: Recurrence Rate Vs Age Recurrence r
Page 31 and 32: Calendar Time Analysis Application
Page 33 and 34: Recurrence Rate Vs Date Example Rec
Page 35 and 36: Failure Cause Plots # Events 17 16
Page 37 and 38: NHPP Fitting MCF Dave Trindade, Swa
Page 39 and 40: Case Study 2 Comparison across cust
Page 41 and 42: Summary The analysis of repairable
Page 43 and 44: Where to Get More Information Glosu

Simple Plots for Monitoring Field Reliability

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